解析 【答案】B【核心短语/词汇】determine:决定【翻译】是什么决定了恒星最终是否会变成黑洞【解析】A选项意为它的形状;B选项意为它的大小;C选项意为它的温度;D选项意为它的颜色。根据原文“Thestar'ssizedetermineswhetheritendsupas a blackhole”(恒星的大小决定了它是否会变成黑洞),可知答案为B ...
A. Its distance from other stars B. Its age C. Its mass D. The amount of dust around it 相关知识点: 试题来源: 解析 C。解析:The size and brightness of a main-sequence star depend on its mass.表明主序星的大小和亮度取决于它的质量。反馈...
A. The temperature of the stars. B. The gravitational forces between the stars. C. The brightness of the stars. D. The age of the stars. 相关知识点: 试题来源: 解析 B。解析:在双星系统中,两颗恒星之间的引力决定了它们的轨道和速度。A 温度、C 亮度、D 年龄都与轨道和速度无关。反馈...
Certainphilosophersandscientistskeeprepeatingthatifwedon?tsaveanimals,howwewill beabletosaveourselves.Abetter 12 ofanimalsgivesusabetterunderstandingofourown species.The 13 toprotectanimalsandnatureingeneral 14 thevalueofasociety.Andall animalsplayrolesinnatureandhavearightto 15 .Therefore,Ithinkweshouldtryour...
What determines the mass of the most massive star cluster in?a?galaxy: statistics, physics or disruption?GielesM.ingentaconnectAstrophysics & Space Science Dordrecht
Your smile determines how you see and think about the world around you.你的笑容决定了你怎样看待和面对你周围的世界。 I wanted to tell you all my secrets, but you became one of them instead.曾经,我想和你分享我的所有秘密,但现在,你成了我心底的秘密。 Destiny determines who comes into our l...
How you do on that practice determines how they talk to you, from then on. If you score really high, they will be all smiles, with questions like; “What would you like to do, in the army? You can get about anything you want that is available.” People who don’t do well on ...
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On a daily basis, the moon appears to move eastward in the sky by 12°, and this determines different angles of its illumination by the sun. As it orbits Earth, the moon will show different illuminated parts based on the angle to the sun and hence the phases of a lunation. Although ...
ROI calculates how much your company makes from advertising (or another channel) after expenses, which includes operational costs, turnover, and more. In comparison, return on ad spend determines how much your business earns (on average) from advertising only. Since they measure different aspects ...